/**
 * @description: 判断值是否未某个类型
 */
export function is(val: unknown, type: string) {
    return Object.prototype.toString.call(val) === `[object ${type}]`;
  }
  
  /**
   * @description:  是否为函数
   */
  export function isFunction<T = Function>(val: unknown): val is T {
    return is(val, "Function");
  }
  
  /**
   * @description: 是否已定义
   */
  export const isDef = <T = unknown>(val?: T): val is T => {
    return typeof val !== "undefined";
  };
  
  /**
   * @description: 是否未定义
   */
  export const isUnDef = <T = unknown>(val?: T): val is T => {
    return !isDef(val);
  };
  
  /**
   * @description: 是否为对象
   */
  export const isObject = (val: any): val is Record<any, any> => {
    return val !== null && is(val, "Object");
  };
  
  /**
   * @description:  是否为时间
   */
  export function isDate(val: unknown): val is Date {
    return is(val, "Date");
  }
  
  /**
   * @description:  是否为数值
   */
  export function isNumber(val: unknown): val is number {
    return is(val, "Number");
  }
  
  /**
   * @description:  是否为AsyncFunction
   */
  export function isAsyncFunction<T = any>(val: unknown): val is Promise<T> {
    return is(val, "AsyncFunction");
  }
  
  /**
   * @description:  是否为promise
   */
  export function isPromise<T = any>(val: unknown): val is Promise<T> {
    return is(val, "Promise") && isObject(val) && isFunction(val.then) && isFunction(val.catch);
  }
  
  /**
   * @description:  是否为字符串
   */
  export function isString(val: unknown): val is string {
    return is(val, "String");
  }
  
  /**
   * @description:  是否为boolean类型
   */
  export function isBoolean(val: unknown): val is boolean {
    return is(val, "Boolean");
  }
  
  /**
   * @description:  是否为数组
   */
  export function isArray(val: any): val is Array<any> {
    return val && Array.isArray(val);
  }
  
  /**
   * @description: 是否客户端
   */
  export const isClient = () => {
    return typeof window !== "undefined";
  };
  
  /**
   * @description: 是否为浏览器
   */
  export const isWindow = (val: any): val is Window => {
    return typeof window !== "undefined" && is(val, "Window");
  };
  
  /**
   * @description: 是否为 element 元素
   */
  export const isElement = (val: unknown): val is Element => {
    return isObject(val) && !!val.tagName;
  };
  
  /**
   * @description: 是否为 null
   */
  export function isNull(val: unknown): val is null {
    return val === null;
  }
  
  /**
   * @description: 是否为 null || undefined
   */
  export function isNullOrUnDef(val: unknown): val is null | undefined {
    return isUnDef(val) || isNull(val);
  }
  
  /**
   * @description: 是否为 16 进制颜色
   */
  export const isHexColor = (str: string) => {
    return /^#?([0-9A-Fa-f]{3}|[0-9A-Fa-f]{6})$/.test(str);
  };
  